Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physica A Statistical Mechanics and its Applications

Pair superfluid and pair supersolid phases in a two-component extended Bose–Hubbard model

Yuan-Jie Lou, Ji-Bing Liu, Ji-Guo Wang

Published Jul 24, 2026• 0 citations
Publisher
DOI
10.1016/j.physa.2026.131830

Related papers

Tunneling frustration induced peculiar supersolid phases in the extended Bose-Hubbard model

Lixin He, Shaojun Dong, Wenyuan Liu +4 more

Bulletin of the American Physical Society•Mar 15, 2017•1 citation

Ground-state phase diagram and route to supersolidity in a two-component extended Bose-Hubbard model

Xuexin Qiu, Ning Bian, Yang Liu +4 more

We investigate the ground-state phase diagram of a two-component extended Bose-Hubbard model recently realized with dipolar excitons, using the projected entangled-pair states. For the experimentally relevant parameter regime, checkerboard, Mott-insulating, superfluid, and vacuum phases are identified. These phases exhibit orbital-selective character, wherein the two components occupy different quantum states, but we find no evidence for a supersolid phase. The absence of supersolidity is attributed to the strongly interaction-dominated microscopic energy scales, which severely restrict the superfluid regime. Guided by the supersolid mechanism, we further explore a nearby parameter regime with enhanced hopping of one component and identify an orbital-selective supersolid phase. Further finite bond-dimension and unit-cell analyses establish the robustness of this phase. Our results clarify the zero-temperature phase structure of the dipolar-exciton platform and provide a possible route toward realizing supersolidity in this setting.

arXiv:2608.08738•Aug 9, 2026•0 citations

Quantum phases of two-component bosons in the extended Bose-Hubbard model

Dian-Cheng Zhang, Shiping Feng, Shi-Jie Yang

Physics Letters A•Dec 28, 2021•3 citations

Spin Phases of Strongly Interacting Two-Component Bose--Hubbard Model

Sagarika Basak, Han Pu

Bulletin of the American Physical Society•May 29, 2019•0 citations

Twisted superfluid phase in the extended one-dimensional Bose-Hubbard model

Dirk-Sören Lühmann

In one-dimensional systems a twisted superfluid phase is found which is induced by a spontaneous breaking of the time-reversal symmetry. Using the density-matrix renormalization group allows us to show that the excitation energy gap closes exponentially causing a quasidegenerate ground state. The two degenerate ground states are connected by the time-reversal symmetry which manifests itself in an alternating complex phase of the long-range correlation function. The quantum phase transition to the twisted superfluid is driven by pair tunneling processes in an extended Bose-Hubbard model. The phase boundaries of several other phases are discussed including a supersolid, a pair superfluid, and a pair supersolid phase as well as a highly unconventional Mott insulator with a degenerate ground state and a staggered pair correlation function.

arXiv:1605.05170•Physical Review A•Jul 18, 2016•16 citations

Disordered Supersolids in the Extended Bose-Hubbard Model

V. W. Scarola, Bhargav Kemburi

Bulletin of the American Physical Society•Feb 29, 2012•0 citations
We investigate the ground-state phase diagram of a two-component extended Bose-Hubbard model recently realized with dipolar excitons, using the projected entangled-pair states. For the experimentally relevant parameter regime, checkerboard, Mott-insulating, superfluid, and vacuum phases are identified. These phases exhibit orbital-selective character, wherein the two components occupy different quantum states, but we find no evidence for a supersolid phase. The absence of supersolidity is attributed to the strongly interaction-dominated microscopic energy scales, which severely restrict the superfluid regime. Guided by the supersolid mechanism, we further explore a nearby parameter regime with enhanced hopping of one component and identify an orbital-selective supersolid phase. Further finite bond-dimension and unit-cell analyses establish the robustness of this phase. Our results clarify the zero-temperature phase structure of the dipolar-exciton platform and provide a possible route toward realizing supersolidity in this setting.
In one-dimensional systems a twisted superfluid phase is found which is induced by a spontaneous breaking of the time-reversal symmetry. Using the density-matrix renormalization group allows us to show that the excitation energy gap closes exponentially causing a quasidegenerate ground state. The two degenerate ground states are connected by the time-reversal symmetry which manifests itself in an alternating complex phase of the long-range correlation function. The quantum phase transition to the twisted superfluid is driven by pair tunneling processes in an extended Bose-Hubbard model. The phase boundaries of several other phases are discussed including a supersolid, a pair superfluid, and a pair supersolid phase as well as a highly unconventional Mott insulator with a degenerate ground state and a staggered pair correlation function.